36 
USE  OF  BENZOIN  IN  OINTMENTS. 
becomes  fluid  after  adding  the  rose  water  ;  it  should  then  be  re- 
moved and  the  mixture  stirred  constantly  and  rapidly  until  it 
becomes  cool.  In  making  six  or  eight  times  the  quantity  of  the 
formula  of  the  Pharmacopoeia,  it  will  require  from  four  to  six 
hours  faithful  stirring. 
The  results  of  the  experiments  upon  the  other  ointments  and 
cerates  are  presented  in  the  following  table  :  ointment  of  red  oxide 
of  mercury  having  been  experimented  upon  previously,  and  the 
results  stated  in  a  former  paper  is  omitted  here.  Ointment  of 
oxide  of  zinc  was  not  experimented  upon,  as  from  long  experi- 
ence I  have  never  known  the  benzoinated  preparation  to  change, 
while  it  is  well  known  that  the  officinal  ointment  very  soon 
becomes  rancid. 
In  the  column  of  names  the  figures  have  reference  to  the  differ- 
ent processes  employed  ;  1  meaning  the  officinal  ;  2,  that  in  which 
ointment  of  benzoin  (U.  S.  P.)  was  substituted  for  lard,  and  3, 
that  in  which  benzoinated  lard  was  substituted.    The  first  three 
preparations  in  the  table  are  made  by  the  formulas  given  above. 
When 
Name. 
MADE. 
Age. 
Condition  in  August,  1867. 
1866. 
mos. 
Cer.  Plumb.  Sub. 
Aug.  28 
12 
Sweet,  discolored  slightly  on  surface. 
1867. 
Oetacei. 
Feb.  20 
6 
Sweet. 
Ung 
.  Aq.  Ros. 
"  22 
6 
Sweet,  slightly  granular  on  surface. 
Cer 
Adipis  1 
Apr.  1 
4 
Sweet  and  smooth. 
June  10 
!  2 
Sweet  and  smooth. 
Zinci  Car.  1 
May  25 
3 
Smooth,  slightly  rancid. 
"  3 
■'  25 
3 
Sweet  and  smooth. 
Ung.  Acid.  Tannic.  1 
"  22 
3 
Spongy  and  granular,  rancid. 
"         "  2 
22 
3 
Granular,  rancid. 
14 
It  U 
"  22 
3 
Sweet,  slightly  granular. 
Li 
Adipis  1 
Apr.  1 
4 
Sweet  and  smooth. 
LL 
3 
May  23 
3 
Sweet  and  smooth. 
Antim.  1 
"  24 
3 
Spongy,  rancid. 
LL 
"  3 
"  24 
3 
Spongy,  sweet. 
U 
Hyd.  Ammon.  1 
"          "  3 
"  24 
3 
Granular,  slightly  rancidr  yellowish. 
LL 
"  24 
3 
Sweet  and  smooth,  white. 
LL 
"    Nit.  1 
Apr.  1 
4 
Color  mottled  green  and  yellow,  sweet. 
LL 
"      "  3 
May  31 
2 
Smooth  and  even  in  color,  sweet. 
i  L 
lod  in.  1 
"  20 
3 
Granular,  no  smell  of  iodine. 
LL 
"  3 
"  15 
3 
Granular,  slight  smell  of  iodine. 
"Co. 3 
"  20 
3 
Granular,  slight  smell  of  iodine. 
LL 
Plumb.  Carb.  1 
"  25 
3 
Sweet  and  smooth. 
LL 
LL                LL  3 
"  25 
3 
Sweet  and  smooth. 
Pot.  lod.  1 
«.  20 
3 
Yellow,  granular,  separately  smell  of  Iodine* 
Yellow,  granular,  odor  good. 
LL 
"     "  2 
"  22 
3 
u 
u     u  3 
"  2.6 
3 
Sweet,  color  unchanged. 
LL 
Sulph.  Iod.  1 
"  22 
3 
Crust  on  surface,  odor  good. 
LL 
»       -l  3 
"  22 
3 
Crust  on  surface,  odor  good. 
